Statewide Rankings

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Please note, Degree Days and Palmer Indices are not available for Alaska. Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

Illinois

Average Temperature Rankings, July 1909

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Record Coolest
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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
July 1909 1-Month	72.8°F (22.7°C)	75.6°F (24.2°C)	-2.8°F (-1.5°C)	12th Coolest	Coolest since: 1905	2009, 2014
	72.8°F (22.7°C)	75.6°F (24.2°C)	-2.8°F (-1.5°C)	117th Warmest	Warmest since: 1908	1936
	Ties: 2004
Jun–Jul 1909 2-Month	72.1°F (22.3°C)	73.5°F (23.1°C)	-1.4°F (-0.8°C)	30th Coolest	Coolest since: 1907	1915, 1958
	72.1°F (22.3°C)	73.5°F (23.1°C)	-1.4°F (-0.8°C)	99th Warmest	Warmest since: 1908	1934
	Ties: 1996
May–Jul 1909 3-Month	67.8°F (19.9°C)	69.7°F (20.9°C)	-1.9°F (-1.0°C)	17th Coolest	Coolest since: 1907	1924
	67.8°F (19.9°C)	69.7°F (20.9°C)	-1.9°F (-1.0°C)	112th Warmest	Warmest since: 1908	1934
	Ties: 1997
Apr–Jul 1909 4-Month	63.2°F (17.3°C)	65.2°F (18.4°C)	-2.0°F (-1.1°C)	13th Coolest	Coolest since: 1907	1907
	63.2°F (17.3°C)	65.2°F (18.4°C)	-2.0°F (-1.1°C)	116th Warmest	Warmest since: 1908	1934
	Ties: 1926
Mar–Jul 1909 5-Month	58.2°F (14.6°C)	60.1°F (15.6°C)	-1.9°F (-1.0°C)	14th Coolest	Coolest since: 1907	1960
	58.2°F (14.6°C)	60.1°F (15.6°C)	-1.9°F (-1.0°C)	115th Warmest	Warmest since: 1908	2012
	Ties: 1951, 1961
Feb–Jul 1909 6-Month	54.0°F (12.2°C)	55.0°F (12.8°C)	-1.0°F (-0.6°C)	36th Coolest	Coolest since: 1907	1947
	54.0°F (12.2°C)	55.0°F (12.8°C)	-1.0°F (-0.6°C)	93rd Warmest	Warmest since: 1908	2012
	Ties: 1965, 1972, 1975
Jan–Jul 1909 7-Month	50.2°F (10.1°C)	50.7°F (10.4°C)	-0.5°F (-0.3°C)	52nd Coolest	Coolest since: 1907	1912
	50.2°F (10.1°C)	50.7°F (10.4°C)	-0.5°F (-0.3°C)	77th Warmest	Warmest since: 1908	2012
	Ties: 1985, 1993
Dec 1908–Jul 1909 8-Month	47.9°F (8.8°C)	48.1°F (8.9°C)	-0.2°F (-0.1°C)	56th Coolest	Coolest since: 1907	1904
	47.9°F (8.8°C)	48.1°F (8.9°C)	-0.2°F (-0.1°C)	72nd Warmest	Warmest since: 1908	2012
	Ties: 1935, 1948, 1950, 1967
Nov 1908–Jul 1909 9-Month	47.2°F (8.4°C)	47.2°F (8.4°C)	0.0°F (0.0°C)	59th Coolest	Coolest since: 1907	1904
Nov 1908–Jul 1909 9-Month	47.2°F (8.4°C)	47.2°F (8.4°C)	0.0°F (0.0°C)	69th Warmest	Warmest since: 1908	2012
Oct 1908–Jul 1909 10-Month	47.9°F (8.8°C)	48.0°F (8.9°C)	-0.1°F (-0.1°C)	54th Coolest	Coolest since: 1907	1904
	47.9°F (8.8°C)	48.0°F (8.9°C)	-0.1°F (-0.1°C)	74th Warmest	Warmest since: 1908	2012
	Ties: 1916, 1928, 1959
Sep 1908–Jul 1909 11-Month	49.8°F (9.9°C)	49.7°F (9.8°C)	0.1°F (0.1°C)	64th Coolest	Coolest since: 1908	1904
	49.8°F (9.9°C)	49.7°F (9.8°C)	0.1°F (0.1°C)	64th Warmest	Warmest since: 1901	2012
	Ties: 1973, 2013
Aug 1908–Jul 1909 12-Month	51.8°F (11.0°C)	51.6°F (10.9°C)	0.2°F (0.1°C)	62nd Coolest	Coolest since: 1908	1904
	51.8°F (11.0°C)	51.6°F (10.9°C)	0.2°F (0.1°C)	66th Warmest	Warmest since: 1901	2012
	Ties: 1944, 1952, 1989, 2013
Feb 1908–Jul 1909 18-Month	52.8°F (11.6°C)	52.7°F (11.5°C)	0.1°F (0.1°C)	61st Coolest	Coolest since: 1908	1918
	52.8°F (11.6°C)	52.7°F (11.5°C)	0.1°F (0.1°C)	67th Warmest	Warmest since: 1898	2012
	Ties: 1928, 1943, 1944, 1965, 1981
Aug 1907–Jul 1909 24-Month	51.6°F (10.9°C)	51.6°F (10.9°C)	0.0°F (0.0°C)	57th Coolest	Coolest since: 1908	1905
	51.6°F (10.9°C)	51.6°F (10.9°C)	0.0°F (0.0°C)	70th Warmest	Warmest since: 1901	2017
	Ties: 1898, 1920, 1948
Aug 1906–Jul 1909 36-Month	51.5°F (10.8°C)	51.6°F (10.9°C)	-0.1°F (-0.1°C)	55th Coolest	Coolest since: 1908	1979
	51.5°F (10.8°C)	51.6°F (10.9°C)	-0.1°F (-0.1°C)	71st Warmest	Warmest since: 1898	2018
	Ties: 1937, 1958, 1998
Aug 1905–Jul 1909 48-Month	51.4°F (10.8°C)	51.6°F (10.9°C)	-0.2°F (-0.1°C)	38th Coolest	Coolest since: 1908	1905, 1980
	51.4°F (10.8°C)	51.6°F (10.9°C)	-0.2°F (-0.1°C)	87th Warmest	Warmest since: 1903	2019
	Ties: 1903, 1910, 1952, 1953, 1964, 1973, 1984, 1985
Aug 1904–Jul 1909 60-Month	51.1°F (10.6°C)	51.6°F (10.9°C)	-0.5°F (-0.3°C)	23rd Coolest	Coolest since: 1908	1906
	51.1°F (10.6°C)	51.6°F (10.9°C)	-0.5°F (-0.3°C)	101st Warmest	Warmest since: 1902	2020
	Ties: 1912, 1927, 1929, 1978, 1983

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published May 2023, retrieved on June 7, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings